Synthesis and Properties of Red Mud-Based Nanoferrite Clinker

Table 2

Composition of red mud from quantitative XRD analysis.

Compositions of red mud	Content (%)
Silica (SiO2)	6.4
Sodalite (Na7.88(Al6Si6O24)(CO3)0.93)	6.8
Sodium dihydrogen silicate tetrahydrate (Na2H2SiO4(H2O)4)	24.3
Anorthite sodian (Na0.33Ca0.67Al1.67Si2.33O8)	1.3
Calcite (CaCO3)	5.0
Magnetite (Fe3O4)	1.4
Hematite (Fe2O3)	33.4
Boehmite (AlO(OH))	10.7
Goethite (FeOOH)	2.8
Brookite (TiO2)	4.5
Tialite (Al2TiO5)	3.4